[Gluster-users] Expand distributed replicated volume with new set of smaller bricks

Nithya Balachandran nbalacha at redhat.com
Wed Apr 4 06:23:46 UTC 2018


Yes this is possible. Make sure you have cluster.weighted-rebalance enabled
for the volume and run rebalance with the start force option.
Which version of gluster are you running (we fixed a bug around this a
while ago)?


On 4 April 2018 at 11:36, Anh Vo <vtqanh at gmail.com> wrote:

> We currently have a 3 node gluster setup each has a 100TB brick (total
> 300TB, usable 100TB due to replica factor 3)
> We would like to expand the existing volume by adding another 3 nodes, but
> each will only have a 50TB brick. I think this is possible, but will it
> affect gluster performance and if so, by how much. Assuming we run a
> rebalance with force option, will this distribute the existing data
> proportionally? I.e., if the current 100TB volume has 60 TB, will it
> distribute 20TB to the new set of servers?
> Thanks
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> Gluster-users at gluster.org
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